Pencil attachment.



F. ZIEIVIER.

PENCIL ATTACHMENT.

APPLICATION FILED N0v.28,1916.

3,224,992.. Patented May 8, 1917.

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ZTMER, UF FREEFURT, EW' YCEJK.

Specicaton of Letters Eatent.

Patented el,

ipplication led lllcvcmber 2Q, 1915. Serial lio. ll.

To @ZZ whom it may concer s n Be it known that l, Fasciatoi; Zinnen, acitizen oit the United States, residing at Freeport, in the county ofNassau, State of New York, have invented a new and uselul PencilAttachment; and l do hereby declare the following to be a. full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

The present invention relates to an eraser attachment for pencils whichembodies novel features ot construction whereby the pencil will not rollupon the floor it dropped on a desk, and will not roll into someinaccessible position'it dropped upon the door, thereby saving the largeamount of time which is ordinarily spent in the aggregate in looking'for lost pencils.

Further objects of the invention are to provide a device of thischaracter which is comparatively simple and inexpensive in itsconstruction, which can be readily placed upon a pencil or removedtherefrom', which not only prevents rolling ot the pencil but can alsobe used as an eraser, and which does not interfere with handling thepencil in the usual manner.

With these and other objects in view, the invention consists in certainnovel combinations and arrangements of the parts as will more fullyappear as the description proceeds, the novel features thereof beingpointed out in the appended claims.

or a :tull understanding of the invention, reference is to be had to theJfollowing description and accompanying drawings, in which Figure l is aperspective view ot1 the reduced end of a pencil upon which theattachment is to be fitted.

Fig. 2 is a detached perspective view of the rubber attachment.

llig. 3 is a side elevation of a pencil having the rubber attachmentapplied thereto, portions being broken away and shown in section.

Fig. l is a transverse sectional view on the line 4 4 ot Fig. 3.

Corresponding and like parts are referred to in the 'followingdescription and indicated in all the views of the drawings by the samereference characters.

' Referring to the drawings, the numeral 1 designates a lead pencilwhich is oit the conventional construction, one end et the pencil beingreduced and tapered, as indicated at in annular seat 3 is provided atthe base ot the reduced and tapered stern 2, while longitudinal groovesl extend along diametrically opposite sides ot the tapered stem 2. lherubber attachment includes an elastic sleeve 5 having a bore which istapered to correspond with the taper of the stem 2, said bore beingprovided upon opposite sides thereof with internal ribs 6 for engagementwith the grooves l ot the stern 2, and being also provided at the mouththereof with an internal enlargement 7 which is adapted to spring intothe annular seat 3. The longitudinal ribs 8 thus cooperate with thegrooves hold the sleeve against rotation upon the pencil, while theenlargement 'i' engages the annular seat 3 to prevent the sleeve frombeing accidentally withdrawn from pencil. The end ot the sleeve carriesa laterally enlarged head 8 which projects a considerable distance uponthe diametrically opposite sides thereo'li2 and is formed with opposedand substantially parallel side faces 8a which are arranged in such amanner as to make it impossible :tor the pencil to roll it accidentallydropped upon the `door or desku The length of the flattened head isconsiderably greater than its thickness, and the ends of the flattenedhead may be slightly Jflared, it desired, and terminate at the sidesthereof in points 8l such as will prove v ry eilec'tive in engaging atlat surface to prevent rolling of the pencil thereon. lilith thisconstruction it will be obvious that the attachment can be readilyslipped upon a pencil or rcmoved therefrom, and that when is inoperative position it can not only be used in the customaryrnanner as aneraser, but will also prevent the pencil from rolling it dropped upon alat surface.4

lt is well known that devices having similar objects in view have beenconstructed with square, triangular and polygonal shaped heads, butthese heads are not effective in preventing the rolling ot a pencil,because ot the tact that the ilat sides on the 1heads of these priordevices are all equal in size and consequently of a small area, therebypreventing a solid bearing of the head on a flat surface. ln the presentconstruction the dat faces 8a are of a larger area and instead of beingequal to the area of each ot the other two faces are considerablygreater. Thus, although when the pencil is carelessly thrown down ordropped on a dat surface one of the smaller end faces might engage thesurface temporarily, the bearing surface is so small, compared to thesize of the head, that the pencil will immediately swing into positionwith one of the larger faces of the head in engagement With the flatsurface, and .remain in this position until deliberately picked up andmoved.

Having thus described'the invention, what l claim as new and desire tosecure by Letters Patent, is

l. The combination with a pencil which terminates at one end thereof ina reduced stem, of an elastic sleeve slipped removably upon the reducedstem and prOVidedWth a iiattened head projecting in diametricallyopposite directions from the sleeve and providing"'opp'76sed andsubstantially parallel side faces to prevent rolling of the pencil on aflat surface, the length of the head being considerably greater than itsthickness so as to provide side faces having a large area and end faceshaving a small area.

i ,a2-sacca 2. The combination with a pencil terminating at the endthereof in a reduced and tapered stem, said stem having longitudinalgrooves inthe sides thereof and an annular depressed seat at the basethereof, of a rubber sleeve fitted upon the stem and provided withinterior longitudinal ribs for engagement With the grooves of the stemas Well asy an annular inwardly-projecting enlargement for engagementwith the seat'at the base of the stem, said sleeve beingformed with aHattened head Which projects laterally therefrom in diametricallyopposite directions and has spaced and parallel side faces adapted toprevent rolling of the pencil on a fiat surface.

ln testimony whereof l have signed my name to this specification in thepresence of two subscribing Witnesses.

FREDRCK ZlEMEjR. Witnesses:

" WM. F. PEARSALL,

JOHN J. MCCAFFREY.

